Eli5: If millions of years ago a day had only 22 hours, does science count those years differently, or is the standard always 24 hours? Aren’t we then missing a few years which we need to add up?

Question

Eli5: If millions of years ago a day had only 22 hours, does science count those years differently, or is the standard always 24 hours? Aren’t we then missing a few years which we need to add up?

In: 7

Answer 1

It doesn’t matter because when scientists say an asteroid hit the Earth 66 million years ago they’re not saying it hit on April 36th at 11:27am.

Why?

Well, nothing is that accurate but mainly due to the fact that the time it takes the Earth to go around the Sun isn’t dependant on the length of the day.